// 了解命名空间

let name = '懒羊羊' ;
let price = '5000' ;

// Object 是 JavaScript 中的 标准内置对象
let x = new Object() ;

x.y = new Object() ;

console.log( x );
console.log( x.y );

x.y.name = '小肥羊火锅' ;
x.y.price = '1299';

console.log( x );
console.log( x.y );

console.log( x.y.name );
console.log( x.y.price );

console.log( name , price );